Component mounter

Abstract

A component mounter includes a side imaging camera that is provided to be integral with the placing head having a plurality of suction nozzles, that moves relatively with respect to the plurality of suction nozzles, and thereby that images, from a side, peripheral regions of front ends of the plurality of suction nozzles, respectively, in order. Incidentally, a component presence/absence determiner (determiner) determines the presence or absence of a component sucked on the front end of the suction nozzle, based on primary image data obtained by the side imaging camera and the calculator calculates a thickness of the component sucked on the front end of the suction nozzle, based on secondary image data obtained by the side imaging camera.

What is claimed is: 
     
       1. A component mounter that has a placing head having a plurality of suction nozzles, the component mounter comprising:
 a side imaging camera that is provided to be integral to a side of the placing head, that moves relatively with respect to the plurality of suction nozzles, and thereby is configured to image peripheral regions of front ends of the plurality of suction nozzles as the side imaging camera is moved relatively with respect to the plurality of suction nozzles; 
 a determiner provided in the side imaging camera, wherein the determiner is a controller that determines a presence or absence of a component sucked by the front end of one of the plurality of suction nozzles, by processing image data of the side peripheral regions obtained by the side imaging camera; and 
 a calculator provided in a main body of the component mounter positioned outside of the side imaging camera, wherein the calculator calculates a thickness of the component sucked by the front end of one of the plurality of suction nozzles, by processing the image data of the side peripheral regions obtained by the side imaging camera. 
 
     
     
       2. The component mounter of  claim 1 ,
 wherein the determiner determines the presence or absence of the component, based on an average luminance value in a preset range in the image data. 
 
     
     
       3. The component mounter of  claim 2 ,
 wherein the preset range in the image data is set for each of the plurality of suction nozzles. 
 
     
     
       4. The component mounter of  claim 2 ,
 wherein the preset range in the image data is set, based on the image data obtained in a state in which a component is absent on the suction nozzle. 
 
     
     
       5. The component mounter of  claim 1 ,
 wherein the determiner determines the presence or absence of the component, based on a contrast value in a preset range in the image data. 
 
     
     
       6. The component mounter of  claim 1 ,
 wherein the determiner determines the presence or absence of the component and the calculator calculates the thickness of the component, based on the same image data. 
 
     
     
       7. A component mounter that has a placing head having a plurality of suction nozzles, the component mounter comprising:
 a side imaging camera that is provided to be integral to a side of the placing head, that moves relatively with respect to the plurality of suction nozzles, and thereby is configured to image peripheral regions of front ends of the plurality of suction nozzles as the side imaging camera is moved relatively with respect to the plurality of suction nozzles; 
 a determiner provided in the side imaging camera, wherein the determiner is a controller that determines a presence or absence of a component sucked by the front end of one of the plurality of suction nozzles, by processing image data of the side peripheral regions obtained by the side imaging camera; and 
 a calculator provided in a main body of the component mounter positioned outside of the side imaging camera, wherein the calculator calculates the thickness of the component sucked by the front end of one of the plurality of suction nozzles, by processing the image data of the side peripheral regions obtained by the side imaging camera, 
 wherein, in a case where the suction nozzle performs a suction operation of a component, and then the determiner determines that a component is absent on the front end of the suction nozzle, a vacuum valve that supplies a vacuum to the end of the suction nozzle is closed. 
 
     
     
       8. The component mounter of  claim 7 ,
 wherein, in a case where the suction nozzle performs the suction operation of a component, and then the determiner determines that a component is absent on the front end of the suction nozzle, the vacuum valve is closed and, in parallel, the calculator stops calculating the thickness of the component on the suction nozzle. 
 
     
     
       9. The component mounter of  claim 7 ,
 wherein, in a case where the suction nozzle performs the suction operation of the component, and then the determiner determines that the component is present on the front end of the suction nozzle, the calculator calculates the thickness of the component that is sucked by the suction nozzle. 
 
     
     
       10. The component mounter of  claim 7 ,
 wherein the determiner determines the presence or absence of the component, based on an average luminance value in a preset range in the image data. 
 
     
     
       11. The component mounter of  claim 10 ,
 wherein the preset range in the image data is set for each of the plurality of suction nozzles. 
 
     
     
       12. The component mounter of  claim 10 ,
 wherein the preset range in the image data is set, based on the image data obtained in a state in which a component is absent on the suction nozzle. 
 
     
     
       13. The component mounter of  claim 7 ,
 wherein the determiner determines the presence or absence of the component, based on a contrast value in a preset range in the image data. 
 
     
     
       14. The component mounter of  claim 7 ,
 wherein the determiner determines the presence or absence of the component and the calculator calculates the thickness of the component, based on the same image data.